Ash-sifter



(No Model.)

LYNCH.

ASH SIFTER. N0 383,312. Patented May 22, 1888.

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witnesses: InWeTZZ OT:

3, msa ffivi i w wk NlTED STATES MICHAEL LYNCH, OF CHIOAGQJLLINOIS.

ASH-SIFTER.

EPECIFICATION forming part of Letters Patent lt'o. 383,312, dated May22, 1888.

Application filed Marrhii, 1887. Scrial No. 229,7.4. (No model.)

To all whom it may concern:

Be it known that I, Mronasr. LYNCH, a citizen of the United States,residing in Chicago, in the county of Cook and State of Illinois,haveinvented a new and useful Improvement in Ash- Sifters, of which thefollowing is a specification.

My invention relates to rotary ash-sifters.

My invention consists in the novel construction and combination ofdevices herein shown and described, and more particularly pointed out inthe claim.

In the accompanying drawings, which form a part of this specification,and in which similar letters of reference indicate like parts, Fig ure 1is a perspective View of a device em bodying my invention. Fig. 2 is acentral vertical longitudinal section. Fig. 3 is averticalcross-section, showing the rotary screen in position for receiving theashes. Fig. 4 is a similar view showing the screen in position fordischarging the einders or unburned coal after the ashes have beenseparated therefrom. Figs. 5 and 6 are partial horizontal sections takenon lines 5 5 and 6 6 of Fig.1; and Fig. 7 is a detail view showing thehinged door of the screen.

. In said drawings, A represents the sitter case or box, in which therotary sitter-screen B is mounted.

The case or box A is provided with a hinged door, A, at one side, nearits base, through which the coal or cinders may be removed, and a hingedlid or cover, A", at its top,through which the ashes may be deliveredinto the rotary screen. The case A is provided at its ends A A withvertical slots a a to receive the shaft 13' of the screen 13.

The cylindrical screen B consists of wire vmeshes or cloth secured tothe circular end pieces or disks, B B". The disks B B are securedtogether by four metal bars or strips, b b, and by the shaft 13. Thelongitudinal bars 1). extending between the disks B" B are secured tothe disks by suitable screws, 1). The bars 6 are preferably made ofiron, and are provided at each end with flanges or bent ends fflwhichoverlap the face of the disk. The periphery of the disks B B is notchedor recessed to receive the bars I), so that the bars will be flush withthe periphery of the disks and leave a true cylindrical surface for thecylindrical wire screen B to fit upon.

The cylindrical disks B B are preferably made of wood, and the screen Bmay be easily and conveniently secured thereon by ordinary staples.

B represents the door of the screen, con sisting of a section of thescreen cylinder extending between two contiguous bars I) b. The door Bis hinged to one of the bars I) by wire loops I), which pass throughsuitable holes, 1), formed in the barb. The opposite edge of the door issecured to the adjoining barb by means of staples b secured in the bar,and which project through the wire meshes at the edge of the door, thedoor being fixed in place by pins I), which are inserted through thestaples. These fasteniugpins are attached by chains D to the screenB,11ear the staplebar I). By means of the perforated hinged bar and thestaple-bar, to which the door is secured at its opposite edges, the dooris firmly fixed to the screen-cylinder,and will support withoutsagging'the contents thereof. The shaft B is furnished with crossbracebars I), which fit inside the cylinder ends 13 B and serve to makethe screen cylinder strong and rigid. The shaft B is journaled inremovable journal-pieces G O, secured upon the outside of the case A bysuitable screws, 0.

The journalbars O C may preferably be of wood, and are furnished withsuitable holes to receive the shaft B. On the shaft B, between the endpieces, A, of the case and the disks B B of the cylinder, circularwasher-blocks b" are provided to keep the ends of the screencylindcrfree from the case. The vertical slots a a in the ends A, which permitthe screencylinder, with its shaft, to be bodily removed from the case Awhen the bearingbars C are loosened, are closed by removable metalplates at, having flanges a through which screws are inserted to securethe plates a in place.

The case A is provided with a sheet-metal hopper or tapering bottom, 1),just below the cylindrical screen B. Through the central opening,l),ofthis hopper the ashes as they sift from the screen B are delivered intoa removable dischargespout, F. The lower end of this spout F projectsthrough an opening, f, in the side of the case, and the upper end of thespout fits upon the mouth of the deliveryhopperD and is supportedthereby. The upper end of the spout is provided with anupwardly-projecting flaring flange or lip, f",having eyes or holesf, inwhich fit the hooks f secured to the flaring side of the hopper D,bywhich the spout is supported and held in place, while at the same timepermitting of the ready removal of the spout when required. The end ofthe spout F is furnished with a handle, F.

G is a tub or pail, into which the cinders and unburned coal aredeliveredafter the ashes have been sifted out and the ash-delivery spoutremoved from the mouth of the hopper.

H is the crank secured on the end of the shaft B.

In operation the ashes are first delivered into the cylindrical screenB, the screen-door 3 being opened for the purpose, as indicated in Fig.3. After the ashes have been thor onghly sifted out by revolving thescreen B, the door is again opened and the screen then turned into theposition shown in Fig. 4, the

shown and described in Patents No. 650, of 0 March 21, 1838; No. 13,083,of June 19, 1855;

No. 147, 296, of February 10,1874; No. 166,680,

of August 17, 1875; No. 178,132, of May 30, 1876, and No. 243,921, ofJuly 5, 1881.

I claim The combination, with case A, of screen B, inclined hopper D,removable spout 1 having flange f, furnished with eyesf,and handle F,said hopper being furnished with hooks f, and said case A being providedwith an opening, f, substantially as specified.

MICHAEL LYNCH.

Witnesses:

H. M. DIUNDAY, LEW. E. CURTIs.

